Fix clean-up order when player crashes

If the player crashes, its binder death will trigger some clean-up.
There was a bug in the clean-up code though since the clean-up
routines on these objects can also remove themselves from the iterating
list. This reverses the iteration order.

Bug: 304929146
Test: crash sysui with >1 queued transitions
Change-Id: Icbee54a6f72ee110216fc11ea88b8ef93e3a9c0e